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Thu, 8 Oct 2026 06:28:56 -0700 Received: from vdi.nvidia.com (10.127.8.10) by mail.nvidia.com (10.129.68.7) with Microsoft SMTP Server id 15.2.2562.49 via Frontend Transport; Thu, 8 Oct 2026 06:28:49 -0700 From: Tariq Toukan To: Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , , Paolo Abeni CC: Bobby Eshleman , Byungchul Park , Carolina Jubran , Cosmin Ratiu , Dragos Tatulea , Gal Pressman , Jacob Keller , Kees Cook , Leon Romanovsky , open list , , Mark Bloch , Matt Fleming , Mina Almasry , Nikolay Aleksandrov , "Saeed Mahameed" , Shivaji Kant , "Simon Horman" , Stanislav Fomichev , "Stanislav Fomichev" , Tariq Toukan , William Tu , Yue Haibing Subject: [PATCH net-next 04/10] net/mlx5e: Add data direct ethtool private flag Date: Thu, 8 Oct 2026 16:28:09 +0300 Message-ID: <20261008132815.654147-5-tariqt@nvidia.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20261008132815.654147-1-tariqt@nvidia.com> References: <20261008132815.654147-1-tariqt@nvidia.com> Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ5PEPF000001D6:EE_|CH1PPF7A6EE32B1:EE_ X-MS-Office365-Filtering-Correlation-Id: 084a716b-f554-4e8d-de52-08df25402a64 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|23010399003|7416014|376014|82310400026|36860700016|56012099006|11063799006|10067099003|22082099003|18002099003|6133799003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230040)(1800799024)(23010399003)(7416014)(376014)(82310400026)(36860700016)(56012099006)(11063799006)(10067099003)(22082099003)(18002099003)(6133799003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: wyRo/P50bSEVS0w2SiEM9zy/PoU7GbvDcktS/N+jnhp1Ie5iPOJESlvRL0txmQ+2TqbPnqHkqAe8O+P23gKgLk57z3lmPmqrxVTfFgpUKHZdNWfXxZoaXJgzqMTogSAeiQ8TFT/lL3nV+7pKKOqshLar7Sahmq0+9YDDXoI/jkPYHcLV9crAI9Po3PKU5vsA7xx9+Q3ylt8BIL85CUv0yrL7dIZcrNdQRBjHoaKH8dUHDl7ExqkSLiLvbwFdvOQf2vgwrs9b+DF8xWWzp1AlbB+ce/ZflsKtIhgodJzeNGbl/SEDPd3sfEYGsCt59nQh/YuumV2Tka6AtAaePKzRM+7EtqshuLljgVqFZHiHAp2Lg8s1Y6P9pr/5grwru5sskikOJq85mpUKVrYDqVEXegFcBBSeAx8vKHTaaWAkwoLwRzwwAUXg8POT7+g8QWVG X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Oct 2026 13:29:22.8981 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 084a716b-f554-4e8d-de52-08df25402a64 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SJ5PEPF000001D6.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH1PPF7A6EE32B1 From: Dragos Tatulea This patch adds the data direct private flag infrastructure. The MLX5E_PFLAG_DATA_DIRECT flag is needed in the follow-up patches to detect the configuration of data direct from the user side. For now the flag can't be actually set. This will be implemented in a follow-up patch once all pieces are put together. This patch doesn't introduce any functional changes. Signed-off-by: Dragos Tatulea Signed-off-by: Tariq Toukan --- drivers/net/ethernet/mellanox/mlx5/core/en.h | 1 + drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | 6 ++++++ 2 files changed, 7 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h index 000493f42912..c5bbe5adea45 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h @@ -264,6 +264,7 @@ enum mlx5e_priv_flag { MLX5E_PFLAG_XDP_TX_MPWQE, MLX5E_PFLAG_SKB_TX_MPWQE, MLX5E_PFLAG_TX_PORT_TS, + MLX5E_PFLAG_DATA_DIRECT, MLX5E_NUM_PFLAGS, /* Keep last */ }; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c index 261c466a4d36..b3eced1dd43f 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c @@ -2400,6 +2400,11 @@ static int set_pflag_tx_port_ts(struct net_device *netdev, bool enable) return err; } +static int set_pflag_data_direct(struct net_device *netdev, bool enable) +{ + return -EOPNOTSUPP; +} + static const struct pflag_desc mlx5e_priv_flags[MLX5E_NUM_PFLAGS] = { { "rx_cqe_moder", set_pflag_rx_cqe_based_moder }, { "tx_cqe_moder", set_pflag_tx_cqe_based_moder }, @@ -2409,6 +2414,7 @@ static const struct pflag_desc mlx5e_priv_flags[MLX5E_NUM_PFLAGS] = { { "xdp_tx_mpwqe", set_pflag_xdp_tx_mpwqe }, { "skb_tx_mpwqe", set_pflag_skb_tx_mpwqe }, { "tx_port_ts", set_pflag_tx_port_ts }, + { "data_direct", set_pflag_data_direct }, }; static int mlx5e_handle_pflag(struct net_device *netdev, -- 2.44.0